The Devil's Calculator is a new, non-profit math game by the creator of Synonymy that proves a sophisticated, challenging and educational indie puzzler for numberphiles and lovers of logic and brain teasers
%system% Account: Once purchased you will be sent instructions on how to download and play The Devil's Calculator through a %system% account. The %system% account login details will be provided with the email instructions. Check the store description to see if there are any language or region restrictions.
%system% Code: Once purchased you will receive a %system% code which can be activated on the %system% network. Download The Devil's Calculator using the instructions provided and enter the %system% code to play. Check the store description to see if there are any language or region restrictions.